Dental Photography Device with Integrated Mirror for Simultaneous Imaging
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Solution Overview
Problem
Current dental imaging methods are time-consuming and lack precision in assessing tooth positioning and detecting changes in tooth color and translucency, with limited field of view and inadequate comparison of different images.
Innovation Solution
A dental imaging device with a support, dental retractor, and mirror system that allows simultaneous acquisition of composite images from different angles, including direct and reflected views, along with a colorimetric and translucency chart for precise color and translucency determination, and a control module to optimize image acquisition conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple updated images are taken to assess tooth positioning from different angles, then measurement precision improves, but loss of time increases due to sequential acquisition
Solution Approach 1:
The patent combines multiple image acquisition functions into a single device by integrating a camera module with a dental retractor. The camera is positioned to capture images of teeth through the retractor opening, allowing simultaneous acquisition of multiple views (direct and reflected) that would otherwise require separate imaging sessions. This merging of functions directly reduces acquisition time while maintaining comprehensive tooth positioning assessment.
Solution Approach 2:
The patent introduces a mirror as an intermediary element positioned within the retractor assembly. This mirror reflects light to provide additional viewing angles of the teeth without requiring separate imaging devices or positions. The mirror acts as a mediator that enables simultaneous capture of direct and reflected images, thereby improving measurement precision across multiple angles while minimizing time loss.
2Device complexity
If a dental retractor with limited field of view is used, then device complexity is reduced, but measurement precision deteriorates due to inadequate coverage
Solution Approach 1:
The mirror serves as an intermediary optical element that expands the effective field of view without adding mechanical complexity to the retractor structure. By strategically positioning the mirror within the existing retractor assembly, the system captures both direct and reflected images of teeth, enabling comprehensive assessment of tooth appearance and positioning while maintaining a simple retractor design.
Solution Approach 2:
The patent utilizes the optical dimension by introducing reflected image paths through the mirror. This adds a new dimensional aspect to image acquisition without requiring physical movement or repositioning of the retractor. The reflected images provide additional perspectives on tooth appearance, enhancing measurement precision while keeping the mechanical structure simple.
3Measurement precision
If colorimetric and translucency targets are added to the device, then measurement precision improves for tooth appearance, but device complexity increases
Solution Approach 1:
The patent merges the colorimetric and translucency targets directly into the retractor structure or support assembly. By integrating these reference targets as permanent or semi-permanent features rather than separate accessories, the device achieves precise color and translucency measurement capabilities while minimizing the increase in overall device complexity. The targets are positioned to be captured in the same image frame as the teeth.
4Productivity
If a mirror system is added to capture reflected images, then productivity improves by reducing acquisition time, but device complexity increases
Solution Approach 1:
The mirror is positioned as a simple intermediary optical element within the retractor assembly, requiring minimal adjustment and alignment. Its primary function is to reflect light paths to provide additional viewing angles, enabling simultaneous capture of multiple images. The mirror's placement is optimized to work with the fixed camera position, reducing the need for complex adjustment mechanisms while maintaining high productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device significantly accelerates the imaging process, provides precise tooth positioning, and allows for accurate comparison of images, enabling rapid and precise assessment of tooth appearance changes.
Implementation Method 1
a mirror (16) fixed to the support (12) and/or to the dental retractor (14), and in which said fixing means are configured for fixing said image acquisition device (19) to said support (12) in a position in which said acquisition device (19) is oriented to receive a composite image comprising a direct image of said retractor opening (24) and an image of said retractor opening (24) reflected by said mirror (16)
Data Source
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Figure 4a~5b
Figure 6a~6c
AI summary
Image capture device comprising: - a support (12); - a dental retractor (14) fixed to the support and defining a retractor opening (24); - a mirror (16) fixed to the support and/or to the retractor; and - means for fixing (18) an image acquisition device (19) to the support in a position in which the acquisition device is oriented to receive a composite image (Ic) comprising a direct image of the retractor opening (Id) and an image of the retractor opening reflected (Ir) by the mirror (16).